St. Venant's theory - Principle strain theory

Q.  St. Venant's theory is also known as maximum  _________
- Published on 21 Sep 15

a. principle stress theory
b. shear stress theory
c. principle strain theory
d. strain energy theory

ANSWER: principle strain theory

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    Discussion

  • Sravanthi   -Posted on 25 Nov 15
    - Different theories of failures are developed depending upon physical behavior of materials.

    - St. Venant's theory is also known as maximum principle strain theory.

    - According to this theory, material subjected to complex stresses fail in simple tensile test, when maximum principle strain reaches the value of strain at yield point.

    - St. Venant's theory is represented as shown below for two direction stress.


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