The effect of material flow on the stress analysis of an SMC component

Pinfold, Martyn; Calvert, G. C.

doi:10.1016/0263-8223(95)00017-8

Cited by 4 publications

(2 citation statements)

References 4 publications

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“…The properties of the material of CFRP mono leaf spring, composite with composition of 70% carbon fiber are determined and listed in Table 2. 17–19 A 3D finite element analysis including modal, harmonic and static analysis on both the steel and composite leaf springs is carried out using ANSYS software. The element type selected for the analysis is element 20 node structural solid186.…”

Section: Finite Element Analysismentioning

confidence: 99%

Evaluation of modal parameters and static characteristics for composite mono leaf spring

Soliman

2020

Noise & Vibration Worldwide

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The objective of this paper was to investigate and evaluate modal parameters and static characteristics for designed carbon/epoxy composite CFRP leaf spring made from carbon ﬁber-reinforced epoxy by comparing its finite element analysis FEA modal, harmonic and static results to that of conventional steel one under the same maximum full bump load. In ANSYS software, finite element modal, harmonic and static analysis for 3D models of conventional steel and designed composite mono leaf springs is carried out. FEA displacements for the steel and designed composite CFRP mono leaf springs at the maximum full bump load were 92.9 mm and 93.1 mm respectively. Compared to the steel mono leaf spring, the composite mono leaf spring has advantages; lower stresses, higher natural frequencies and higher safety in stresses of front and rear eyes. All these advantages let the composite leaf spring can be carried maximum full bump load with enough higher performance over steel one to avoid resonance and satisfy maximum stress failure criterion.

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Section: Finite Element Analysismentioning

confidence: 99%

Evaluation of modal parameters and static characteristics for composite mono leaf spring

Soliman

2020

Noise & Vibration Worldwide

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“…This strongly influences the mechanical properties of the products. [ 10–12 ] For this reason, and due to the high viscosity of epoxy matrices during molding, [ 13 ] parts made with ASMC tend to have a coverage of 80–90% in order to minimize the flow path length. At the same time, complex features such as ribs and stiffeners have to be processed at high pressures to avoid incomplete filling.…”

Section: Introductionmentioning

confidence: 99%

Application of the stress interaction failure criterion in platelet composite compression molded parts

et al. 2021

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The stress interaction failure criterion was applied to three compression‐molded sheet molding compound (SMC) materials. Two are epoxy‐based compounds with randomly oriented carbon fiber tows, and the third material consists of glass fiber bundles randomly oriented in a vinyl ester resin. The failure surface was built using tensile test results at different orientations with respect to the flow direction, resulting in combined loads in the principal stress coordinate system. Three unknown variables arise from using only tensile strength values. Solving a system of three equations derived from the criterion function and using the failure values obtained from destructively testing at three different orientations, the unknown variables as well as the interaction strength components were determined. Results show good agreement for all three materials. Overprediction was found in some instances, attributed to the effect of fiber orientation distribution in the part, and to the complex interactions of the filled structures. To allow a more direct comparison between predicted and experimental data, the resulting failure surface was translated to the global coordinate system (σxx) and compared to the data derived from destructive tensile tests. Good agreement for all materials was observed, with underprediction noted for some orientations, attributed in part to the equation solving method and the nature of the mesostructures of the composites, where interactions between the tows, resin, mold walls, and fibers are present. The results of this work show that the methodology described permits the development of a failure surface for SMC materials when limited data is available.

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Enhancement of strength and uniformity in unidirectionally arrayed chopped strands with angled slits

Taketa

Sato

Kitano

et al. 2010

Composites Part A: Applied Science and Manufacturing

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The effect of material flow on the stress analysis of an SMC component

Cited by 4 publications

References 4 publications

Evaluation of modal parameters and static characteristics for composite mono leaf spring

Evaluation of modal parameters and static characteristics for composite mono leaf spring

Application of the stress interaction failure criterion in platelet composite compression molded parts

Enhancement of strength and uniformity in unidirectionally arrayed chopped strands with angled slits

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