This idea can be applied to logistics as well. In the past, logistic cost has been defined in purely monetary terms. However, as not only in the EU but also in the USA and other countries became more and more aware of environmental problems ,for instance because of climate change, air pollution, noise and accidents, environmental considerations has been taken in logistics kfield. This is how Gree
1. What is Convergence?
Digital convergence is mainly driven by the TIME industries (Telecommunication, IT/Internet, Media and Entertainment) and provides new, innovative solutions to consumers and business users. Based on digital technologies and digitized content it encompasses converged devices (such as smartphones, laptops, internet enabled entertainment devices and set top boxes), converged
Compression Test)은 점착력이 있는 시료를 원추형 공시체로 만들어 측압을 받지 않는 상태로 축하중을 가하여 전단파괴 시켜서 시료의 전단강도를 결정하는 방법이다. 점착력이 없는 흙은 성형이 되지 않으므로 일축압축시험을 수행할 수 없다. 물체가 전단파괴 될 때에는 파괴면은 주응력면과 45 +/2 각도
실험용 jig를 설치한 측정한다.
각 시편의 특성에 따라 가해지는 힘에 따라 변형 또는 파단이 일어나게 되는데 이를 각각 인장 변형률 (tensile strain)과 인장강도(tensile stress)라 한다.
인장변형률(ε) : ε =∆L/L0
인장강도(σ) : 변형(또는 파단)이 일어날 때의 힘 / 변형이 일어나기 전 시편의 단면적.
-Conclusion & Discussion
Poisson's ratio is derived by dividing the horizontal strain modulus by perpendicular strain modulus. Poisson's ratio is a characteristic value of materials, and concretes have 0.16∼0.22 of it. The Poisson's ratio from the first experiment is 0.18 and this is comprised in the range of theory, and the value from the second experiment is 0.16 which also comes under th