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Journal of Vibration Testing and System Dynamics

C. Steve Suh (editor), Pawel Olejnik (editor),

Xianguo Tuo (editor)

Pawel Olejnik (editor)

Lodz University of Technology, Poland


C. Steve Suh (editor)

Texas A&M University, USA


Xiangguo Tuo (editor)

Sichuan University of Science and Engineering, China


Problems of Size Effect in Similar Experimental Models: A Review

Journal of Vcibration Testing and System Dynamics 3(3) (2019) 329--346 | DOI:10.5890/JVTSD.2019.09.006

Si-wei Guo$^{1}$,$^{2}$, Zhong Luo$^{1}$,$^{2}$, Qing-wen Yu$^{1}$,$^{2}$, FeiWang$^{1}$,$^{2}$

$^{1}$ School of Mechanical Engineering & Automation, Northeastern University, Shenyang, China

$^{2}$ Key Laboratory of Vibration and Control of Aero-Propulsion Systems Ministry of Education of China, Northeastern University, Shenyang, Liaoning, China

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This paper is concerned with a review of the size effect involved in the similar experimental models. The review covers in many fields, including size effect in microscopic system structure such as the study of the micro-beam mode, civil structure and mechanical structure such as the study of mechanical properties, the application of dynamic similarity model design in large structures. This is followed by the influencing factors of size effect and methods of predicting fatigue strength and fatigue life of large structures. Analysis of formulas for predicting the stress and strain, stress field near notched specimens used in large structures are established. Finally, the formulas for predicting the size factor and fatigue life of large structures about size effect are summarized and prospected.


This work was supported by the National Science Foundation of China [grant number 11872148, 11572082]; the Fundamental Research Funds for the Central Universities of China [grant numbers N170308028, N160312001]; and the Excellent Talents Support Program in Institutions of Higher Learning in Liaoning Province of China [grant number LJQ2015038].


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