judicial 发表于 2025-3-28 15:30:54
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Characterizing the Temperature Dependent Spring-Back Behavior of Poly(Methyl Methacrylate) (PMMA) ftutive model must capture several deformation modes including uniaxial compression and stress relaxation with cooling in order to predict spring-back. In this work, the thermo-mechanical coupling of spring-back is investigated through finite element simulations utilizing a constitutive model that caMorbid 发表于 2025-3-29 00:27:34
,Thermomechanical Fatigue Evaluation of Haynes® 230® for Solar Receiver Applications,nd creep performance at very high temperatures. In this study, the alloy was evaluated as a candidate for its use as tubing material in solar receivers, where coupled thermal-mechanical cycling is imposed in-use by heating imposed during diurnal cycles. The effect of temperature, 425 and 677 °C, and安慰 发表于 2025-3-29 06:13:15
Viscoelastic Characterization of Fusion Processing in Bimodal Polyethylene Blends,installation methods. Pipe sections are often joined using thermal fusion processes. The strength of the joint is related to the ability of the polyethylene chains to inter-diffuse and form inter-crystalline tie-chains across the two polyethylene surfaces. Testing the strength of the fusion bond isRodent 发表于 2025-3-29 10:19:53
Viscoelastic Properties for PMMA Bar over a Wide Range of Frequencies,ncy range of 25–200 kHz and longitudinal wave propagation experiments in the lower frequency range of up to 15 kHz. Since the geometrical dispersion due to three-dimensional deformation was caused by higher frequency components involved in the ultrasonic waves, the three-dimensional wave theory was深陷 发表于 2025-3-29 14:06:47
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Thermal Crystallinity and Mechanical Behavior of Polyethylene Terephthalate,chanical stretching and melt flow history influence the extent and structure of crystalline domains in the semi-crystalline polymer. Typical processing parameters include the rate of cooling and the amount of stretch. Both influence crystallization differently. Isolating the contribution from stretc