Browse Publications Technical Papers 2014-01-0827
2014-04-01

Dynamic Stress Experimental Study on Key Part of Port under Impact Load 2014-01-0827

The port structure consisting of spur pile, vertical pile and beam is subjected to impact loads, so its internal stress state of each point will rapidly change over time. Dynamic photoelastic method is used to study the dynamic stress and stress wave propagation. With epoxy resin and other materials, a photoelastic model of beam to column connection structure is processed and product. The dynamic response of the model under the impact load by the free fall is researched by the dynamic photoelastic method, and recorded by the new digital dynamic photoelastic system with a laser source and high-speed photography system. The internal dynamic stress propagation and distribution, the maximum shear stress and the dynamic stress concentration problems can be obtained by analyzing the dynamic response. Researching on the key part under impact load using dynamic photoelastic method can furnish the experimental evidence of transient stress phenomenon for theoretical research and engineering applications.

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