Experimental determination of the compressive strength of pultruded structural shapes

A Novel Manufacturing Technique to Improve Bearing Strength of Pin Loaded Woven Composites

“…The bearing strength of pinned-loaded composite is defined as σ b =P/Dt where P, D and t are explained as tensile load, hole diameter and thickness of the specimen, respectively [11,12]. In some studies, as an alternative design parameter, the bearing strength is also calculated as the stress at 4% deformation of the hole diameter σ b 4 %d =P 4%d /Dt [8].…”

A numerical and experimental study of the material properties determining the crushing behaviour of pultruded GFRP profiles under lateral compression

“…Coupon type specimens taken from pultruded profiles have been tested to develop and calibrate micromechanical model approaches for progressive damage and elastic-degrading analyses. [4][5][6][7][8][9] Several authors reported on the progressive deformation behaviour, buckling and energy absorption capacities under axial loading. 1,6,10,11 Bending stiffness and buckling response of pultruded beams, with different lay-up configurations and cross-sectional shapes, subjected to lateral loads are described in detail [12][13][14][15][16][17] as well as the low velocity impact response using a falling weight impact tower.…”

“…[4][5][6][7][8][9] Several authors reported on the progressive deformation behaviour, buckling and energy absorption capacities under axial loading. 1,6,10,11 Bending stiffness and buckling response of pultruded beams, with different lay-up configurations and cross-sectional shapes, subjected to lateral loads are described in detail [12][13][14][15][16][17] as well as the low velocity impact response using a falling weight impact tower. [18][19][20][21][22][23] All reported tests on boxbeam sections under axial and lateral loading revealed progressive tearing, the separation of the vertical and horizontal members at the corners of the cross-section.…”

Strength evaluation of honeycomb FRP sandwich panels with sinusoidal core geometry

“…From previous studies, we can estimate the compressive strength for the ChSM to be about 22.2 ksi for the present fiber volume fraction (Barbero et al, 1999). From the same test method as will be described in Chapter 5, the compressive strength is found to be 21.5 kips, as shown in Appendix B.…”

“…Apparently, this method cannot avoid brooming, as will be shown in this section. To solve this problem, Barbero et al (1999) developed a novel fixture. This fixture has been used successfully to determine compressive strength of composites (Makkapati, 1994;Tomblin, 1994) and is also adopted herein (see Fig.…”