Experimental and numerical investigation on in-plane compression and shear performance of a pultruded GFRP composite bridge deck

Mechanical characterization of a unidirectional pultruded composite lamina using micromechanics and numerical homogenization

“…Experimental results also indicated that the average longitudinal and transverse Poisson's ratio are 0.265 and 0.114, respectively. Test results showed that the experimental value of the in-plane shear strength is smaller than the predicted value obtained in previous studies [12][13][14]. This variation may be attributed to the fact that the behavior of woven reinforced lamina is different from unidirectional GFRP lamina.…”

“…(3-a), the bilinear traction-separation model, which assumed to be linear elastic (point ''a") followed by the damage initiation (point ''b"), the evolution of damage (point ''c"), and finally the fully damaged state (point ''d"), is employed in this paper. In the elastic stage [12,13], the traction increased linearly along with the displacement with an initial slope of K 0 . At point ''b", the damage of the cohesive element is initiated.…”

“…Pultruded glass fiber reinforced polymer (GFRP) composites could meet the established design criteria with reasonable cost and are often recommended for newly constructed bridges and buildings [6][7][8][9]. Typical pultruded composites profiles used in civil engineering application includes I-and H-shaped girders [1,2], double web beam [10], GFRP-concrete hybrid decks [3,4,11] and modular bridge decks [12,13].…”

“…The importance of adopting a multi-scale analysis in determining mechanical properties of pultruded GFRP laminates has been recommended in previous studies e.g. [12,13]. Although several investigations on carbon fiber reinforced polymer (CFRP) for aerospace structures were conducted, results and outcomes of such studies are not generally applicable to pultruded composites that are commonly used in construction applications.…”

“…For this reason, analytical modeling that considers the specific nature of pultruded composites is required in order to predict its thermo-mechanical performance. Details for calculating lamina thickness, laminates fiber volume fraction and engineering constants of each lamina were reported previously by the authors [12,13]. In addition, and in order to accurately obtain lamina strength, laboratory tests to characterize the unidirectional lamina strength are needed.…”