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When studying 3D fatigue crack growth behaviors of materials, to determine the crack opening stress intensity factor ratio is the key issue.
Introduction Even though a lot of investigations have been done on three-dimensional (3D) fatigue crack propagation behaviors of materials, it's far away to predict 3D fatigue crack growth widely with good precise [1, 2, 3, 4, 5].
When studying 3D fatigue crack growth behaviors of materials, to determine the crack opening stress intensity factor ratio is the key issue.
When studying the 3D fatigue crack growth behaviors of materials, to determine the crack opening stress intensity factor ratio is the key issue.
Vol. 51 (1995), p. 51 [3] Wanlin Guo: three dimensional fatigue and fracture of materials, PhD thesis, Northwestern Polytechnical University (1991) [4] X.J.

Introduction Polymer materials are widely applied as biomedical materials including prosthetic materials, bone and dental implants, and tissue engineering.
In order to improve the mechanical properties of materials, HDPE could be combined with a lot of particle material as a reinforcement.
In many ductile materials, this type of fracture is followed by the emergence of a damage zone or stress whitened zone.
Zhong, Mechanical properties, tribological behavior, and biocompatibility of high-density polyethylene/carbon nanofibers nanocomposites, Journal of Composite Materials, 49(2015) 1503-1512 [6] V.C.
Cracks, microcracks and fracture in polymer structures: Formation, detection, autonomic repair, Progress in Materials Science 83 (2016) 536–573 [25] B.R.K.

Sun: Applied Mechanics and Materials.
Fu: Journal of Iron and Steel Research.
Natural Science.
Viruthagiri: Journal of Hazardous Materials.
Hu: Journal of Food Engineering.

Three were materials in common usage, Al 2219, Al 2014 and Al 5083.
Hot cracking in all materials was associated with persistent, continuous liquid films produced by weld thermal cycling, aggravated by base material structure.
The NST and the NDT were determined for all materials tested using the Gleeble.
In alloy 2219 there was much more evidence of complete backfilling of flaws than in the other materials.
Shi, et.al., Materials Science and Engineering A, 465,1-2, (2007), p.153 [4] E.A.

CoO doped glasses are significantly important in the materials technology in terms of optical switching devices, visible and near- infrared laser materials, ferromagnetic sensors, etc.
According to the classical dielectric theory, the refractive index depends on density and on polarizability of the atom in a given materials.
Acknowledgements The authors wish to thank Plasma for Surface Sciences Laboratory, Thailand Center of Excellence in Physics (ThEP), CHE and the Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University to some analytical equipment.
Journal of Alloys and Compounds, 509, (2011) 4935–4939
Materials Science and Engineering, 18, (2011) 112008

ND is a very powerful technique to characterize the texture character of materials.
The pertinent attribute of neutrons with respect to texture is the small absorption coefficients of neutrons for most materials, compared to X-rays.
Saburi: Shape Memory Materials, (Edited by K.
Bunge: Texture Analysis in Materials Science - Mathematical Methods, (Translated by P.R.
Journal de Physique IV. (2002) In print

When a disturbance occurs, the volume of material 1 can be changed, at this time, we need to change the volume of material 2, in order to achieve the ratio purpose[2].
Conclusion The computer flow ratio control system based on network instrument, can not only obtain the appropriate flow control and ratio control, achieve strong operability, due to the use of the double closed loop flow control system, it can effectively realize the mixing 2 materials, which has a strong anti interference capability.
Journal of Guizhou University,2011,27 (8): 74-76 [3] Cai Rui,Wang Ping.
Summary of networked instrument and Industrial instrumentation and automation[J].Journal of Network,2010 (6): 117-121
The design and simulation technique of single loop flow ratio control system[J].Journal of Wuhan University of Technology,2011,11 (2): 22-24 [7] Chen Dong,Wan Dingsheng.The key technique of network instrument design based on NET[J].Computer Science,2011(2):152-154 [8] Jia Xiangyu,Ni Jie.The application of BP neural network in flow ratio control system[J].Journal of System Engineering， 2011,35 (7) : 93-97

Because of these advantages, sandwich materials are widely used in marine, aerospace and many other applications.
Samples Raw materials Three types of 3D warp-knitted spacer fabrics were used in this study.
Composites Science and Technology 2000;60:1263-1276 [3] X.F.
Textile Research Journal 2012:00(0):1-10 [4] Y.
Journal of Composite Materials 2010: Vol.44: 593-617

Table 1 and Table 2 show the chemical compositions of the base materials in weight %.
Welding parameter combinations Base materials Welding current [kA] Welding time [ms] Welding force [kN] 5754-H22 / DP600 16,5 220 2,5 6082-T6 / DP600 15 220 2,5 4.
Tisza, Investigation of clinch joints made of similar and dissimilar materials, IOP Conference Series: Materials Science and Engineering 426 (2018) 1-9
Blair, Role of Fe2Al5 in fracture of novel dissimilar aluminum-steel resistance spot welds using multi-ring domed electrodes, Materials Science & Engineering A 831 (2022)
Majid, Critical assessment 27: dissimilar resistance spot welding of aluminium/steel: challenges and opportunities, Materials science and technology 33 (2017) 1705 – 1712

Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2010, 31(6):6-10 [5] Lin Li.
A Study on the 3D Fine Model of A Large-scale and Complicated Steel Truss Bridge, architecture and building materials[J], 2011,99-100:383-387
Study of Dynamic Visual Query Demonstration System for Steel Bridge Constructing Process, architecture and building materials[J], 2011,99-100:177-180
Journal of Henan Polytechnic University [J]. 2008, 27: 333-338
Xi’an University of Science and Technology, 2006