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  • Open Access


    Study on Dynamic Mechanical Properties of Q245R Steel at High Temperature

    Zhiyuan Liu1, Jue Zhu1,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.26, No.1, pp. 1-1, 2023, DOI:10.32604/icces.2023.09798

    Abstract In order to study the dynamic mechanical properties at high temperature and high strain rate [1] of Q245R steel after corrosion, the electrochemical accelerated corrosion test by constant current method and the high strain rate tensile test at high temperature [2] by High Temperature Synchronous Hopkinson Tensile test device were carried out. The test results show that Q245R steel has obvious strain rate strengthening effect and temperature softening effect, and under certain conditions, temperature becomes the main factor affecting the material properties. In order to consider the heat treatment and corrosion effects, the traditional Johnson-Cook [3-4] constitutive equation was improved,… More >

  • Open Access


    Hydrogels with Brain Tissue-Like Mechanical Properties in Complex Environments

    Jingyu Wang1,#, Yongrou Zhang4,#, Zuyue Lei1, Junqi Wang1, Yangming Zhao1, Taolin Sun3,*, Zhenyu Jiang1, Licheng Zhou1, Zejia Liu1, Yiping Liu1, Bao Yang1, Liqun Tang1,2,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.4, pp. 1-1, 2023, DOI:10.32604/icces.2022.08829

    Abstract In surgical training applications and experimental research, brain tissues immersed in cerebrospinal fluid often involve very complex deformation and strain rate effects, which affects their reliability and stability. Thus, it is indispensable to develop a high-fidelity human brain tissue simulant material as a physical surrogate model to understand their mechanical behavior, such as traumatic brain injury (TBI). However, the reported simulant materials have not yet been able to compare and satisfy the above two mechanical properties. Here, we developed a novel composite hydrogel with brain tissue-like mechanical properties and investigated their mechanical behavior in a solution environment. The results demonstrate… More >

  • Open Access


    Microstructures and Nanomechanical Properties of Additively Manufactured Metallic Stents

    Enzoh Langi1, Liguo Zhao2,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.3, pp. 1-1, 2023, DOI:10.32604/icces.2023.010163

    Abstract Additive manufacturing emerges as an innovative technology to fabricate medical stents used to treat blocked arteries. However, there is a lack of study of underlying microstructure and mechanical properties of additively manufactured stent. In this work, additively manufactured 316L stainless steel stent was investigated, with electrochemical polishing being used to improve the surface finish. Microstructural characterisation was carried out using optical microscopy, scanning electron microscopy, and electron backscatter diffraction. The hardness and elastic modulus were measured using Berkovich nanoindentation, with an emphasis on the effect of grain orientation. In addition, spherical nanoindentation was used to obtain indentation stress-strain curves based… More >

  • Open Access


    An In Vitro Study of Correlation Between the Compositions, Structure and Mechanical Properties of the Arterial Plaque

    Mohamed Abdulsalam1, Jiling Feng1,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.2, pp. 1-1, 2023, DOI:10.32604/icces.2023.09884

    Abstract Atherosclerosis developed in the arterial wall is the major cause of cardiovascular events such as stroke and heart failure. Atherosclerosis, also referred to as arterial plaque can be classified as stable, unstable, and vulnerable plaque. In terms of the features of compositions and structures, atherosclerosis also can be classified as calcified plaque, the plaque with a lipid core, and plaque with a thin fibrous cap. It is expected that the compositions, structures, and mechanical properties of the plaques interrelate with each other. The correlations between the compositions, structure, and mechanical properties are expected to characterize the nature of the rupture… More >

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