Research Initiation: Experimental and Theoretical Investigation of the Short and Long Term Behavior of a Pultruded Composite Rigid Frame

玻璃纤维刚架结构的动力响应 增强塑料（FRP）拉挤型材将被 研究了 该实验项目将检查 全尺寸结构框架在短期荷载作用下发生破坏， 在长期荷载作用下， 显著 应变计、电阻器和千分表将 用于监测框架中的应变和变形。 液压千斤顶和自重将用于加载框架。 理论程序将考虑各向异性和 材料的粘弹性特性，并开发了一个代码来分析 短期非线性响应和长期蠕变 反应框架的分析将包括剪切的影响 变形，这是已知的是显着的复合材料薄壁 梁。 理论上预测的力和挠度将为 与实验测量的结果相比。 的结果 调查应提供重要数据， 制定未来的分析和设计方法， 拉挤纤维增强塑料。

The response of rigid frame structures constructed of glass fiber reinforced plastic (FRP) pultruded profile sections will be investigated. The experimental program will examine the behavior of full-sized structural frames under short term loading to failure and under long term loading in which creep deformation will be significant. Strain gages, rosettes, and dial indicators will be used to monitor the strains and deformations in the frames. Hydraulic jacks and dead weights will be used to load the frames. The theoretical program will account for the anisotropic and viscoelastic properties of the material and develop a code to analyze both the short term nonlinear response and the long term creep response. The analysis of the frame will include the effects of shear deformation which is known to be significant in composite thin-walled beams. The theoretically predicted forces and deflections will be compared with those measured experimentally. The results of this investigation should provide important data which will be used to develop future methodologies of analysis and design with standardized pultruded fiber reinforced plastics.