The statistical second-order two-scale method for mechanical properties of statistically inhomogeneous materials

2010 ◽  
Vol 84 (8) ◽  
pp. 972-988 ◽  
Author(s):  
Fei Han ◽  
Junzhi Cui ◽  
Yan Yu
Keyword(s):  
Mechanical Properties ◽  
Second Order ◽  
Inhomogeneous Materials ◽  
Scale Method

Dynamic thermo-mechanical coupled simulation of statistically inhomogeneous materials by statistical second-order two-scale method

2015 ◽  
Vol 31 (5) ◽  
pp. 762-776 ◽  
Author(s):  
Zihao Yang ◽  
Junzhi Cui ◽  
Yufeng Nie ◽  
Zhiqiang Huang ◽  
Meizhen Xiang
Keyword(s):  
Second Order ◽  
Inhomogeneous Materials ◽  
Coupled Simulation ◽  
Scale Method

scholarly journals Dynamic mechanical behaviors of epoxy resin/hollow polymeric microsphere composite foams under forced non-resonance and forced resonance

2021 ◽  
Vol 30 ◽  
pp. 263498332110081
Author(s):  
Rui Li ◽  
Guisen Fan ◽  
Xiao Ouyang ◽  
Guojun Wang ◽  
Hao Wei
Keyword(s):  
Mechanical Properties ◽  
Epoxy Resin ◽  
Second Order ◽  
Polymer Microspheres ◽  
Hollow Glass Microsphere ◽  
Dynamic Mechanical ◽  
First Order ◽  
Composite Foams ◽  
Prepared Composite ◽  
Loss Factors

Composite foams with 10–50 vol% hollow polymeric microspheres were prepared using bisphenol A epoxy resin and polyetheramine curing agent as the matrix. The results demonstrated that the density, hardness, and static mechanical properties of the epoxy resin/hollow polymer microsphere composite foams, as well as their dynamic mechanical properties under forced non-resonance, were similar to those of polymer/hollow glass microsphere composite foams. At 25°C and under 1–100 Hz forced resonance, the first-order and second-order resonance frequencies of the composite foams shifted to the low-frequency region as the volume fraction of hollow polymer microspheres increased. Meanwhile, the first-order and second-order loss factors of the as-prepared composite foams were improved by 41.7% and 103.3%, respectively, compared with the pure epoxy resin. Additionally, the first-order and second-order loss factors of the as-prepared composite foams reached a maximum at 40 vol% and 30 vol% hollow polymer microspheres, respectively. This research helps us to expand the application range of composite foam materials in damping research.

Identification of mechanical properties of inhomogeneous materials

2012 ◽  
Vol 47 (4) ◽  
pp. 448-453 ◽  
Author(s):  
N. A. Roganova ◽  
G. Z. Sharafutdinov
Keyword(s):  
Mechanical Properties ◽  
Inhomogeneous Materials
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