Results 51 to 60 of about 312,151 (163)

The Influence of Internal Pressure on Fatigue Life of Coiled Tubing Winding on Roller

Shiyou jixie, 2018
In order to study the influence of loading history on the fatigue life of coiled tubing, assuming that the fatigue life of coiled tubing is related to the equivalent strain amplitude and equivalent mean strain, an equivalent method of multi-axial strain ...
Zhou Zhihong, Yuan Taoyong
doaj  

A refined method for determining equivalent radius (Req) in resonant column tests across a wide strain range

International Journal of Geo-Engineering
The equivalent radius $$\:{R}_{eq}$$ has been used for calculation of strain in Resonant Column (RC) testing. Present calculation methods for $$\:{R}_{eq}$$ are not adequate since they are not precise over a wide range of strain.
Tien Hue Nguyen, Taebong Ahn, Yujin Lim
doaj   +1 more source

Calculation Method of New Assembled Corrugated Steel Initial Support Structure of Highway Tunnel

Applied Sciences
The assembled corrugated steel initial support structure is a new prefabricated structure in highway tunnel engineering, achieving a balance between economy and safety.
Wenqi Ding, Xuanbo Huang, Chengshuo Yu, Qingzhao Zhang, Tianxiang Wu   +4 more
doaj   +1 more source

Determination of mode I stress intensity factor using visible mechanochromic luminescent sensing response

Journal of Materials Research and Technology
Rapid detection of fracture damage and structural integrity assessment are critically important for structure safety. In this study, a novel detection technique based on mechanochromic luminescent sensing film is developed to detect fracture damage.
Yonggang Ren, Zheng Liu, Zhe Zhang, Xu Chen   +3 more
doaj   +1 more source

A MODIFIED METHOD FOR CALCULATING STRESSES AND STRAINES OF NOTCH UNDER BIAXIAL LOADING CONDITION

Jixie qiangdu, 2017
It has already been proved that the Neuber method overestimates the notch root stresses and strains and the equivalent strain energy density（ESED） method underestimates those,that is,the upper limit and lower limit can be obtained by the above two ...
LI YouSheng
doaj  

Multiaxial creep deformation investigation of miniature cruciform specimen for type 304 stainless steel at 923 K using non-contact displacement-measuring method

Journal of the Mechanical Behavior of Materials
Multiaxial creep investigations at high temperatures are required to guarantee the integrity of structural materials such as boiler pipes for power generation and turbine blades for aviation and industrial applications.
Hiyoshi Noritake
doaj   +1 more source

Finite Element Simulation for Effect of Initial Rolling Temperature on Change of Rolling Dynamic Structure of Steel 42CrMo4

Teshugang, 2011
The three dimensional thermal mechanically coupled simulation on alloy steel 42CrMo4 roiling in box pass has been carried out by using LARSTRAN/SHAPE finite element software.
doaj  

Low cycle fatigue analysis of welded joints considering material cycling behavior

Advances in Mechanical Engineering
In order to describe the local cyclic behavior of welds during low cycle fatigue of welded structures, so as to effectively assess the low cycle fatigue of structures, a structural strain numerical method is proposed.
Shaocong Shi, Guangyu Qiu, Zhaoyue Chen, Guangyuan Liang, Xiangwei Li   +4 more
doaj   +1 more source

Thermal Crack Risk Estimations of Concrete Walls : Temperature and Strain Measurements Correlated to the Equivalent Restraint Method

, 2017
 Self-induced non-elastic deformations in hardening concrete, caused by restrained volume changes due to thermal dilatation and moisture deformations, often leads to cracking. In crack risk analyses, determination of the degree of restraint is vital. One model to estimate the restraint and calculate the thermal crack risk is the Equivalent Restraint ...
Hösthagen, Anders, Jonasson, Jan-Erik, Emborg, Mats, Nilsson, Martin   +3 more
openaire   +1 more source

Failure Behavior and Mechanism of Solder Joint Under Thermal Mechanical Coupling Loads. [PDF]

Materials (Basel)
Deng Y, Chen S, Liu P, Lu G, Yang X, Zhao Y, Jian X.   +6 more
europepmc   +1 more source