The calculation of maximum bending normal stress for sandwich beam based on revised single beam theory

Hao Jingxin1,2、Liu Wenjin1,2、Wu Xinfeng1

Strategic Study of CAE ›› 2014, Vol. 16 ›› Issue (4) : 92-95.

PDF(1478 KB)
PDF(1478 KB)
Strategic Study of CAE ›› 2014, Vol. 16 ›› Issue (4) : 92-95.

The calculation of maximum bending normal stress for sandwich beam based on revised single beam theory

  • Hao Jingxin1,2、Liu Wenjin1,2、Wu Xinfeng1

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Abstract

Maximum bending normal stress is one of the important parameters to measure flexural property of sandwich beam. Therefore,new methodology to calculate the stress is proposed based on the equivalent single beam theory,after that the numerical examples are demonstrated according to three point flexure test. The results showed that revised single beam theory (RSBT) are equivalent to multi-layer theory (MLT). When cross section of beam and maximum loading are fixed,the maximum bending normal stress calculated by RSBT is increased accordingly with increasing ratio of core thickness to the whole,but the result is constant for single beam theory (SBT). RSBT is set up to provide a new method for sandwich construction application in engineering industry.

Keywords

sandwich beam / bending normal stress / single beam theory / bending property

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Hao Jingxin,Liu Wenjin and Wu Xinfeng. The calculation of maximum bending normal stress for sandwich beam based on revised single beam theory. Strategic Study of CAE, 2014, 16(4): 92‒95
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