Achieving a Lightweight and Steel-Intensive Body Structure for Alternative Powertrains

Shaw, Jody; Kuriyama, Yoshiaki; Lambriks, Marc

doi:10.4271/2011-01-0425

Cited by 16 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Cost-effectiveness for end users is another benefit which could be gained by weight saving in the structure [1,2]. The aforementioned advantages encourage variety of engineering sectors particularly construction [2][3][4][5][6][7], and automotive industry [8][9][10], to continuously look for the new applications of higher grades of steel. The available common manufacturing methods to produce HSS/UHSS are quenching and tempering (Q&T), and direct quenching (DQ) [11].…”

Section: Introductionmentioning

confidence: 99%

Effects of heat input on the mechanical properties of butt-welded high and ultra-high strength steels

Amraei

Ahola

Afkhami

et al. 2019

Engineering Structures

View full text Add to dashboard Cite

In this study, the mechanical properties of butt-welded thin plates made of S700, S960 and S1100 steels under various heat inputs (HI) are investigated. The gas metal arc welding (GMAW) process with two different levels of HI, and laser welding (LW) are implemented for this purpose. Fully automated welding process is employed to attain high quality and homogeneous weldments. Standard tensile tests of the butt-welded joints, together with micro-hardness measurements are conducted in this study. The microstructure of the heat affected zones (HAZ) of the weldments are closely examined using scanning electron microscopy (SEM). It was observed that while the fracture was occurred at the base materials of all S700 and S1100 weldments, the S960 suffered from failure at the HAZ which resulted in reduction of the joint's strength and ductility. For all the studied steels, it was found that the joint's ductility is highly dependent on HI values over the range of 0.3-1.4 kJ/mm for each welding pass. Though, the S1100 steel showed the best performance under welding HI with a moderate change in its mechanical properties and a stable microstructure after welding compared to S700 and S960.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of heat input on the mechanical properties of butt-welded high and ultra-high strength steels

Amraei

Ahola

Afkhami

et al. 2019

Engineering Structures

View full text Add to dashboard Cite

show abstract

“…Further studies with a focus on trade-offs between environmental impacts from raw materials, manufacturing and primary effects on the use stage of automotive lightweight structures focus on steel-intensive car bodies [174] as well as composites and hybrid materials in ICE-and electric vehicles [175]. For EVs, only for two out of six studied lightweight components that had been designed within a research project, additional GWP burdens from raw materials and manufacturing could be compensated during the use stage [175].…”

Section: Automotivementioning

confidence: 99%

Life cycle engineering of lightweight structures

et al. 2018

View full text Add to dashboard Cite

Lightweight structures are increasingly necessary to meet current engineering requirements. Weight reduction in diverse applications such as automobiles or machine tools is achieved either by using less material or by substituting material with a lighter one, which provides more functionality per unit of weight. To be an effective enabler for sustainability, lightweight structures should result in lower environmental impacts per functional unit when compared to conventional structures on a life cycle basis. However, applying new materials and manufacturing processes often leads to an increase in environmental impacts from the raw materials and production stage of the life cycle. Furthermore, end-of-life disassembly and recycling may become more difficult. In addition, the expected efficiency gains from the use of lightweight structures depend on how the overall market and technical systems respond to them. Consequently, the environmental evaluation of lightweight structures in engineering entails various methodological challenges. Organised around a life cycle engineering framework with a focus on eco-effectiveness, this paper provides a comprehensive review of lightweight structure applications and the challenges and opportunities they present in a life cycle engineering context.

show abstract

“…In particular, the use of lightweight materials to reduce the vehicle energy storage requirements and hence size of the plug-in battery required to provide a particular driving range also reduces battery costs. Bull, 9 Faßbender et al, 15 Redelbach et al, 17 Hofer et al, 19 Brooker et al, 23 Hofer et al, 26 and Shaw et al 13 all found substantial financial savings from downsizing BEV batteries. Hofer et al 26 analyzed BEVs with different driving ranges and found those with longer electric driving ranges have greater potential cost savings and thus can financially justify more extensive use of lightweight materials.…”

Section: Mass Reductions From Lightweighting Vehicles With Different ...mentioning

confidence: 99%

“…Additionally, studies noted that the cost of lightweighting decreases with higher production volumes (Frangi 3 ) and technology improvements over time (Hofer et al 19 ). Redelbach et al, 17 Shaw et al 13 and Brooker et al 23 illustrated vehicle ownership costs as a function of the cost of lightweighting, as opposed to assuming a specific value. Several studies note the uncertainties of estimating the costs of lightweighting, but establish a relationship between mass reduction and cost of lightweighting to facilitate a discussion of vehicle design implications.…”

Section: Lightweighting Vehicles With Different Powertrainsmentioning

confidence: 99%

Review of the Fuel Saving, Life Cycle GHG Emission, and Ownership Cost Impacts of Lightweighting Vehicles with Different Powertrains

Luk

Kim

Kleine

et al. 2017

Environ. Sci. Technol.

View full text Add to dashboard Cite

The literature analyzing the fuel saving, life cycle greenhouse gas (GHG) emission, and ownership cost impacts of lightweighting vehicles with different powertrains is reviewed. Vehicles with lower powertrain efficiencies have higher fuel consumption. Thus, fuel savings from lightweighting internal combustion engine vehicles can be higher than those of hybrid electric and battery electric vehicles. However, the impact of fuel savings on life cycle costs and GHG emissions depends on fuel prices, fuel carbon intensities and fuel storage requirements. Battery electric vehicle fuel savings enable reduction of battery size without sacrificing driving range. This reduces the battery production cost and mass, the latter results in further fuel savings. The carbon intensity of electricity varies widely and is a major source of uncertainty when evaluating the benefits of fuel savings. Hybrid electric vehicles use gasoline more efficiently than internal combustion engine vehicles and do not require large plug-in batteries. Therefore, the benefits of lightweighting depend on the vehicle powertrain. We discuss the value proposition of the use of lightweight materials and alternative powertrains. Future assessments of the benefits of vehicle lightweighting should capture the unique characteristics of emerging vehicle powertrains.

show abstract

Achieving a Lightweight and Steel-Intensive Body Structure for Alternative Powertrains

Cited by 16 publications

References 0 publications

Effects of heat input on the mechanical properties of butt-welded high and ultra-high strength steels

Effects of heat input on the mechanical properties of butt-welded high and ultra-high strength steels

Life cycle engineering of lightweight structures

Review of the Fuel Saving, Life Cycle GHG Emission, and Ownership Cost Impacts of Lightweighting Vehicles with Different Powertrains

Contact Info

Product

Resources

About