Bending Strength requirement
This is the first body requirement and its task is to support all the vehicle subsystems. The body in static is going to suffer bending due to the weight of the components, passengers, fuel and cargo, Figure 42. Similar to a beam simple supported, the very first requirement is that the structure bend sufficient to absorb the energy due to the weight, but has to withstand the weight under different loading scenarios.
Figure 42: Body loading under a static scenario…
There are 2 types of strengths that materials can be tested on: Comprehensive strength and Ultimate Tensile strength. Ultimate Tensile strength is measured by how much stress can a material withstand, while being stretched or pulled apart before breaking, while comprehensive strength is how much van the material resists while being pushed in (together). There is also a Yield Strength- the point at which the material starts to slowly break and cannot come back to it’s shape. Before the yield…
hand, indicates that changes in the price, will have little to no influence in the quantity of demand. In other words, a price rise would always cause an increase in revenue, for the reason that demand would remain constant (Skousen, 2014). Both elasticity and price inelastic are significant aspects of supply and demand. Especially, since the use of these systems can assist in identifying if the market prices are at equilibrium, or whether a surplus or shortage is being…
Study of Stress Corrosion Cracking (SCC) in
1. Introduction of Stress Corrosion Cracking
Stress Corrosion Cracking (SCC) is the growth of cracks with a under the combined
effects of a static stress and a specific chemical environment. All SCC failures
involve a macroscopic brittle performance, and the ductility of the material is reduced.
It is universally acknowledged that there is no single mechanism for stress corrosion
cracking (Ford, 1984). Stress…
1) What are engineering stress and strain?
Engineering stress is also called nominal stress, and it is defined as the applied load divided by the original cross sectional area of the material.
Engineering strain is defined as the amount of material that deforms per unit length in a tensile test. Engineering strain is also known as nominal strain.
2) In the figure below, graphically show the toughness of three class materials:…
3.1. Growth Kinetic of strain:
The growth curve of strain in both of mediums is shown in Fig. 1 (Supplementary data). It was apparent that 2 hours after nucleation of culture, strain interred to logarithmic phase and continues for 10 h in MRS broth and 12 h in PPM medium. Sonication continued in logarithmic phase in 2 h intervals.
3.2. The effect of ultrasound on growth kinetic:
The growth curves plotted for the two condition (with and without sonication) (Fig. 1), growth kinetic parameters…
The aim of the Stress Concentration Experiment was to observe the stress concentration factor/feature for a set of mild steel specimens with various irregularities in each sample. These irregularities or “stress-raisers” include any notches and holes which vary in size (radius) and placement on the specimen (edge notches or holes) that may have an effect on the flow of stress.
With the use of a Hounsfield 50 kN electrically operated tensile testing machine and 12 1-mm thick mild steel test…
The concentration of CDCL and CSER is obtained by solving equation (1) and (2)
CX = A1 / ax1 ………………..... (1)
CY = [A2 – (ax2 × CX)] / ay2…...(2)
A1 and A2are absorbance of mixture at λ1 and λ2respectively.
ax1 and ax2 are absorptivities of DCL at λ1 and λ2, respectively,
ay1 and ay2 are absorptivities of SER at λ1 and λ2, respectively,
CXandCYare concentrations of DCL and SER, respectively.
Concentration of DCL and SER in the powder mixture is found by using equation (3) and (4)…
Facilitators of Active / Successful Aging
According to Rowe (1998), factors contributing to successful aging are the individual’s lifestyles choices, their innate personality in how they approach life, and a positive attitude build in resilience. Consider resiliency, by definition—quality of life does not always relate to physical illness. When comparing similar socio-demographic factors, those factors relating to positive outcomes for resiliency were the ability to recognize the people who…
To describe a human being, you would have to pick many qualities in order to truly paint a solid picture of a person. You can describe them and the subject might say “yes that sounds like me” but the reality is that we probably missed something. This is a really tough situation to be in and you could either insult someone because you missed something about them or they could think you do not really know them. Now imagine having to do it on yourself. You will read about how I am a mentor, how…