JP4568888B2 - 応力解析方法及び応力解析装置 - Google Patents
応力解析方法及び応力解析装置 Download PDFInfo
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- JP4568888B2 JP4568888B2 JP2007502556A JP2007502556A JP4568888B2 JP 4568888 B2 JP4568888 B2 JP 4568888B2 JP 2007502556 A JP2007502556 A JP 2007502556A JP 2007502556 A JP2007502556 A JP 2007502556A JP 4568888 B2 JP4568888 B2 JP 4568888B2
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- 238000004458 analytical method Methods 0.000 title claims description 34
- 238000005259 measurement Methods 0.000 claims description 37
- 239000000126 substance Substances 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 14
- 238000004020 luminiscence type Methods 0.000 claims description 12
- 238000003384 imaging method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 10
- 238000000691 measurement method Methods 0.000 description 8
- 238000012360 testing method Methods 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000004053 dental implant Substances 0.000 description 2
- 238000002796 luminescence method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000000399 orthopedic effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000001931 thermography Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000004154 testing of material Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
- G01L1/248—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet using infrared
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
- G01N2203/0222—Temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0254—Biaxial, the forces being applied along two normal axes of the specimen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0694—Temperature
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
ΔT=−k・T・Δσ ・・・(1)
ΔT: 温度変化(K)
k: 熱弾性係数(1/Pa)
T: 物体温度(K)
Δσ:主応力和の変化(Pa)
ここで、熱弾性係数kは、(2)式で与えられる。
k=a/(ρ×Cp) ・・・(2)
a :線膨張係数(1/K)
ρ:密度(kg/m3)
Cp:定圧比熱(J/(kg/K))
2 カメラ
3 熱弾性応力測定部
4 応力発光測定部
5 演算処理部
6 データ出力部
7 画像出力部
試料(等方弾性体)の表面応力を、平面応力状態として検討する。主応力σ1、σ2に対して歪みε1、ε2は
ε1=1/E ×(σ1−νσ2) ・・・(1)
ε2=1/E ×(σ2−νσ1) ・・・(2)
と表記できる。ここで、Eは縦弾性係数、νはポアソン比である。
u=1/2 ×(σ1ε1+σ2ε2) ・・・(3)
であるので、(3)式に、(1)、(2)式を代入すると、
u=1/2E ×(σ1 2+σ2 2)− ν/E ×σ1σ2 ・・・(4)
=1/2E ×(σ1 2+σ2 2−2νσ1σ2) ・・・(5)
=1/2E ×((σ1+σ2)2−2σ1σ2−2νσ1σ2) ・・・(6)
である。
σ1+σ2=A ・・・(7)
σ2=A−σ1 ・・・(8)
を(6)式に代入すると、
u=((1+ν)/E)×σ1 2 −(A(1+ν)/E)×σ1+(A2/2E) ・・・(9)
となり、この式を変形すれば、
((1+ν)/E)×σ1 2 −(A(1+ν)/E)×σ1
+((A2/2E)−u)=0 ・・・(10)
と、σ1に関する2次方程式を得る。
(1+ν)/E = B ・・・(11)
−A(1+ν)/E = C ・・・(12)
(A2/2E)−u = D ・・・(13)
はすべて既知の値となる。
σ1 = (−C±(C2−4BD)1/2)/ (2B) ・・・(14)
σ2 = A−σ1 ・・・(15)
と求めることができる。(14)式内の±符号は、絶対値やキャリブレーションから一意に決定できる。なお、この結果は、
(σ1、σ2)=(−C±(C2−4BD)1/2)/ (2B) ・・・(16)
と表現しても同じである。
u=1/2 ×(τγ) ・・・(17)
である。
γ=1/G ×τ ・・・(18)
を(17)式へ代入すれば、
u=1/2G ×τ2 ・・・(19)
となる。
従って、(19)式より
τ=±(u×2G)1/2 ・・・(20)
を得る。
Claims (8)
- 被測定物体の応力解析方法であって、
前記被測定物体は、熱弾性効果を有するとともに、応力発光物質の適用で応力発光が測定できる物体であり、
撮像装置を用いて、応力による物質の温度状態変化を画像測定することにより前記被測定物体に作用する熱弾性応力状態を測定し、
撮像装置を用いて、応力で発光する物質の光を画像測定することにより前記被測定物体に作用する応力発光状態を測定し、
前記熱弾性応力状態の測定データと前記応力発光状態の測定データを演算処理することにより応力分布を含む所定の力学情報を得ることを特徴とする応力解析方法。 - 前記所定の力学情報は、垂直応力成分分布情報であることを特徴とする請求項1記載の応力解析方法。
- 前記所定の力学情報は、せん断応力分布情報であることを特徴とする請求項1記載の応力解析方法。
- 前記演算処理によって純粋せん断応力分布を出力することを特徴とする請求項1記載の応力解析方法。
- 被測定物体の応力を解析する応力解析装置であって、
前記被測定物体は、熱弾性効果を有するとともに、応力発光物質の適用で応力発光が測定できる物体であり、
応力による物質の温度状態変化を画像測定することにより前記被測定物体に作用する熱弾性応力状態を測定する熱弾性応力撮像手段と、
応力で発光する物質の光を画像測定することにより前記被測定物体に作用する応力発光状態を測定する応力発光撮像手段と、
前記熱弾性応力撮像手段及び前記応力発光撮像手段で得られたデータを演算処理することにより応力分布を含む所定の力学情報を得る演算処理手段と、
を備えたことを特徴とする応力解析装置。 - 前記所定の力学情報は、垂直応力成分分布情報であることを特徴とする請求項5記載の応力解析装置。
- 前記所定の力学情報は、せん断応力分布情報であることを特徴とする請求項5記載の応力解析装置。
- 前記演算処理手段は、純粋せん断応力分布を出力することを特徴とする請求項5記載の応力解析装置。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005033124 | 2005-02-09 | ||
JP2005033124 | 2005-02-09 | ||
PCT/JP2006/300176 WO2006085424A1 (ja) | 2005-02-09 | 2006-01-11 | 応力解析方法及び応力解析装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2006085424A1 JPWO2006085424A1 (ja) | 2008-06-26 |
JP4568888B2 true JP4568888B2 (ja) | 2010-10-27 |
Family
ID=36793002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007502556A Active JP4568888B2 (ja) | 2005-02-09 | 2006-01-11 | 応力解析方法及び応力解析装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7769550B2 (ja) |
JP (1) | JP4568888B2 (ja) |
WO (1) | WO2006085424A1 (ja) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8056422B2 (en) * | 2005-01-21 | 2011-11-15 | National Institute Of Advanced Industrial Science And Technology | Method and member for measuring stress distribution of natural bone, synthetic bone, or member attached to them |
JP4568883B2 (ja) * | 2006-01-20 | 2010-10-27 | 独立行政法人産業技術総合研究所 | 応力・歪みの解析方法及び装置 |
US10186163B1 (en) | 2009-11-25 | 2019-01-22 | Peter D. Letterese | System and method for reducing stress and/or pain |
JP5970892B2 (ja) * | 2012-03-21 | 2016-08-17 | 株式会社豊田中央研究所 | ひずみ測定装置、方法、及びプログラム |
KR101505943B1 (ko) * | 2013-07-22 | 2015-03-25 | 경북대학교 산학협력단 | 토크 변환기, 토크 변환기 제조 방법 그리고 토크 변환기를 이용하는 차량용 변속기 |
US9395308B2 (en) * | 2013-10-10 | 2016-07-19 | University Of Akron | Apparatus for quantitative measurements of stress distributions from mechanoluminescene materials |
US20150125681A1 (en) * | 2013-11-06 | 2015-05-07 | United Technologies Corporation | High Temperature Imaging Media for Digital Image Correlation |
JP6334991B2 (ja) * | 2014-03-31 | 2018-05-30 | 株式会社日立製作所 | 構造物の表面検査システムおよび表面検査方法 |
US9970833B2 (en) * | 2014-04-23 | 2018-05-15 | The Boeing Company | Witness material and method for monitoring the environmental history of an object |
CN104458089B (zh) * | 2014-11-24 | 2016-08-24 | 杭州电子科技大学 | 一种测量冲击的探头 |
JP6469467B2 (ja) * | 2015-02-05 | 2019-02-13 | 株式会社日立製作所 | 構造材および風力発電設備、風力発電システム |
JP7165415B2 (ja) * | 2017-12-26 | 2022-11-04 | 国立研究開発法人産業技術総合研究所 | 破壊可視化用センサおよびそれを用いた破壊可視化システム |
TWI716183B (zh) * | 2018-11-20 | 2021-01-11 | 財團法人工業技術研究院 | 應力測量裝置和應力測量方法 |
US11408730B2 (en) | 2018-11-20 | 2022-08-09 | Industrial Technology Research Institute | Stress measuring device and stress measuring method |
CN112255078A (zh) * | 2020-08-29 | 2021-01-22 | 郑州大学 | 一种基于数字图像处理的含孔板件应力集中系数测量方法 |
CN112307574B (zh) * | 2020-09-10 | 2022-06-28 | 华电电力科学研究院有限公司 | 一种量化承压管件应力集中区域的方法 |
JP2023115465A (ja) * | 2022-02-08 | 2023-08-21 | 慶應義塾 | 欠陥推定装置、欠陥推定方法及びプログラム |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001215157A (ja) * | 2000-02-02 | 2001-08-10 | Natl Inst Of Advanced Industrial Science & Technology Meti | 応力発光材料を用いた応力または応力分布の測定方法と測定システム |
JP2003139627A (ja) * | 2001-11-05 | 2003-05-14 | Jeol Ltd | 物理量を求める方法 |
Family Cites Families (8)
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GB8422873D0 (en) * | 1984-09-11 | 1984-10-17 | Secr Defence | Static stress measurement in object |
US5817945A (en) * | 1996-04-15 | 1998-10-06 | Mcdonnell Douglas | System and method of determining strain |
US6203508B1 (en) * | 1997-10-16 | 2001-03-20 | Scimed Life Systems, Inc. | Thermal and stress mapping of body lumens |
JP3265356B2 (ja) | 1997-10-20 | 2002-03-11 | 独立行政法人産業技術総合研究所 | 発光材料及びその製造方法 |
JP2003137622A (ja) | 2001-10-30 | 2003-05-14 | Taiheiyo Cement Corp | 発光骨材 |
US6943869B2 (en) * | 2002-10-04 | 2005-09-13 | Resesarch Foundation, Inc. | Method and apparatus for measuring strain using a luminescent photoelastic coating |
US8056422B2 (en) * | 2005-01-21 | 2011-11-15 | National Institute Of Advanced Industrial Science And Technology | Method and member for measuring stress distribution of natural bone, synthetic bone, or member attached to them |
JP4568883B2 (ja) * | 2006-01-20 | 2010-10-27 | 独立行政法人産業技術総合研究所 | 応力・歪みの解析方法及び装置 |
-
2006
- 2006-01-11 US US11/883,919 patent/US7769550B2/en not_active Expired - Fee Related
- 2006-01-11 JP JP2007502556A patent/JP4568888B2/ja active Active
- 2006-01-11 WO PCT/JP2006/300176 patent/WO2006085424A1/ja not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001215157A (ja) * | 2000-02-02 | 2001-08-10 | Natl Inst Of Advanced Industrial Science & Technology Meti | 応力発光材料を用いた応力または応力分布の測定方法と測定システム |
JP2003139627A (ja) * | 2001-11-05 | 2003-05-14 | Jeol Ltd | 物理量を求める方法 |
Also Published As
Publication number | Publication date |
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JPWO2006085424A1 (ja) | 2008-06-26 |
WO2006085424A1 (ja) | 2006-08-17 |
US7769550B2 (en) | 2010-08-03 |
US20080120045A1 (en) | 2008-05-22 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |