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orthotropic material

Determination of residual stresses by ESPI-HD method

We have an equipment and technology for determination of residual stresses. They are based on the hole-drilling method and electron speckle
interferometry (ESPI-HD method).

Gao Yunxin's picture

measurements of the 9 elastic constants of an orthotropic composite

Hi, it would be greatly appreciated if anyone could tell me the methods to measure the elastic constants of an orthotropic composite (3D). Can we measure one single modulus by one specific stress state? What is the efficient way to do the test? Any information related to this test is appreciated.

Thanks and regards



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