“…All specimens were cut by a computerized numerical control milling machine with tungsten steel spiral milling cutter. 40 Dimensions are shown in Figure 3(a) that refers ASTM D7264 <Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials>.Figure 2.Preparation of woven CFRP. 40 Figure 3.Specimens and tester.…”
Section: Three-point Bending Testmentioning
confidence: 99%
“…40 Dimensions are shown in Figure 3(a) that refers ASTM D7264 <Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials>.Figure 2.Preparation of woven CFRP. 40 Figure 3.Specimens and tester. (a) Three-point bending specimen of [0/90] 20 and [±45] 20 , (b) MTS tester and three-point bending fixture.…”
Section: Three-point Bending Testmentioning
confidence: 99%
“…All specimens were cut by a computerized numerical control milling machine with tungsten steel spiral milling cutter. 40 Dimensions are shown in Figure 3…”
The tensile and compressive properties of woven carbon fibre-reinforced composites (CFRP) are different owing to the buckling and entanglement of fibre bundles. Two bimodulus constitutive models (TBM and PBM) were proposed based on the track stress criterion and principal stress criterion. Combined with the Hashin three-dimensional strength criterion and Alvaro stiffness reduction criterion, a material subroutine was written to calculate the bimodulus constitutive models. Three-point bending tests of [0/90]20 and [±45]20 were designed to obtain the load–displacement curves and failure modes. The precision of the calculation results with the traditional unimodulus model and bimodulus models were compared, and the bending performance of woven CFRP was explored. The results demonstrate that fibre fracture and interlayer damage occur with different stacking sequences. The material properties can be better shown with less error as bimodulus models. The stiffness and strength of the PBM were slightly larger than those of the TBM, and the failure factors were smaller than those of the TBM. The results of the TBM are closer to the test, and the material subroutine is easier to realise. Bimodulus constitutive models have good application prospect in woven composites for higher accuracy.
“…All specimens were cut by a computerized numerical control milling machine with tungsten steel spiral milling cutter. 40 Dimensions are shown in Figure 3(a) that refers ASTM D7264 <Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials>.Figure 2.Preparation of woven CFRP. 40 Figure 3.Specimens and tester.…”
Section: Three-point Bending Testmentioning
confidence: 99%
“…40 Dimensions are shown in Figure 3(a) that refers ASTM D7264 <Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials>.Figure 2.Preparation of woven CFRP. 40 Figure 3.Specimens and tester. (a) Three-point bending specimen of [0/90] 20 and [±45] 20 , (b) MTS tester and three-point bending fixture.…”
Section: Three-point Bending Testmentioning
confidence: 99%
“…All specimens were cut by a computerized numerical control milling machine with tungsten steel spiral milling cutter. 40 Dimensions are shown in Figure 3…”
The tensile and compressive properties of woven carbon fibre-reinforced composites (CFRP) are different owing to the buckling and entanglement of fibre bundles. Two bimodulus constitutive models (TBM and PBM) were proposed based on the track stress criterion and principal stress criterion. Combined with the Hashin three-dimensional strength criterion and Alvaro stiffness reduction criterion, a material subroutine was written to calculate the bimodulus constitutive models. Three-point bending tests of [0/90]20 and [±45]20 were designed to obtain the load–displacement curves and failure modes. The precision of the calculation results with the traditional unimodulus model and bimodulus models were compared, and the bending performance of woven CFRP was explored. The results demonstrate that fibre fracture and interlayer damage occur with different stacking sequences. The material properties can be better shown with less error as bimodulus models. The stiffness and strength of the PBM were slightly larger than those of the TBM, and the failure factors were smaller than those of the TBM. The results of the TBM are closer to the test, and the material subroutine is easier to realise. Bimodulus constitutive models have good application prospect in woven composites for higher accuracy.
“…Some scholars have studied the effects of glass beads as fillers on the mechanical properties of composites [17][18][19][20][21][22] , the effects of SiO2 particles on the mechanical and physical properties of SiO2/epoxy resin composites [23][24][25][26][27][28] , and the static and dynamic mechanical behavior of CaCO3 modified epoxy resin composites [29][30][31][32] . The effect of fillers on the mechanical properties of acrylic composites [33][34][35][36] and the dynamic tensile properties of the composites were tested using digital image correlation method (DIC) [37][38][39][40] . So far, there is relatively little research on the mechanical properties of acrylic resin composites reinforced with glass beads, quartz sand, and heavy calcium carbonate fillers [41][42][43] .…”
Acrylic resin is widely used in fields such as aerospace, military, coatings, and electronic equipment due to its excellent physical and chemical properties. The mechanical properties of its polymer composite materials are influenced by various factors such as component volume fractions, types, and treatment methods. In this paper, the mechanical properties of particle-reinforced acrylic composites and the factors affecting them are investigated. The effect patterns of the contents of glass beads, quartz sand, and heavy calcium carbonate on the tensile, bending, and compressive properties of the polymer composites were experimentally investigated. Combined with the digital image correlation (DIC) to observe the dynamic damage images of the specimens, the full strain field information was analyzed and the local strain distribution was studied. A finite element model of polymer composite materials was established, and the numerical simulation results were consistent with the experimental results. The progressive damage and failure process of the composite materials was analyzed. This research result can guide the experimental design and application of particle reinforced acrylic composite materials.
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