Tests on GFRP Pultruded Profiles with Channel Section Subjected to Web Crippling
Source abstract
Abstract
This paper presents an experimental investigation on the web-crippling behavior in glass fibre reinforced polymer (GFRP) pultruded profiles with channel section. A main bending main crack on the web is the main failure mode in the test. The effects of the loading positions, the supporting conditions and bearing lengths on the web crippling behavior of GFRP pultruded profiles with channel section are discussed. Specimens with interior bearing load have higher ultimate strength and all the specimens with loading conditions IG reached the highest ultimate strength but all ruptured. Ultimate strengths of GFRP pultruded profiles with channel section can not be enhanced by increasing the length of the bearing plate. Finite element models were developed to numerically simulate the test results in the terms of ultimate loads, failure modes and load-displacement curves. Based on the results of the parametric study, a number of design formulas are proposed in this paper to accurately predict web crippling ultimate capacity of pultruded GFRP channel sections under four loading and boundary conditions.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Structural Behavior of Reinforced Concrete · Structural Load-Bearing Analysis
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