Casting and stress-strain simulations of a cast ductile iron component using microstructure based mechanical behavior

The focus of this paper is on the stress-strain behavior and creep response of a pressure-sensitive adhesive (PSA) with and without carrier layers. This study consists of two phases. The first phase focuses on understanding of the effects of fabrication profiles, including bonding pressure, bonding temperature, bonding time, and aging time, on the PSA joint strength. This part of the study is used to identify an acceptable bonding and aging conditions for manufacturing a robust PSA bonded assembly. Specimens fabricated with this selected set of bonding process conditions are then used for mechanical characterization. The second phase focuses on the assembly’s mechanical behavior (stress-strain behavior and the creep curves) under different loading conditions, including loading stress, loading rate, and loading temperature. The mechanical behavior of PSA bonded assemblies is affected not only by the loading conditions, but also by the assembly architecture. The mechanical behaviors and failure modes of PSAs with and without carrier layers are compared. The reasons for these differences are also discussed.

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Resonant Inspection Applied to 100% Testing of Nodularity of Cast Ductile Iron

SAE International Journal of Passenger Cars - Mechanical Systems ◽

10.4271/2008-01-2577 ◽

2008 ◽

Vol 1 (1) ◽

pp. 1247-1250 ◽

Cited By ~ 4

Author(s):

Richard W. Bono ◽

Gail R. Stultz

Keyword(s):

Ductile Iron ◽

Cast Ductile Iron

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Plasticity of MoSi2 Below 900°C

MRS Proceedings ◽

10.1557/proc-322-223 ◽

1993 ◽

Vol 322 ◽

Cited By ~ 3

Author(s):

H. Chang ◽

R. Gibala

Keyword(s):

Dislocation Density ◽

Mechanical Behavior ◽

Yield Point ◽

Stress Strain ◽

Temperature Range ◽

Dislocation Plasticity

AbstractThe mechanical behavior of polycrystalline MoSi2 tested in compression at temperatures from 750°C to 950°C has been investigated. This material can be deformed to several percent strain without fracture at temperatures as low as 900°C. This same material prestrained at 1300°C and subsequently tested at lower temperatures can be deformed to substantial strain at 800°C, and even exhibits modest plasticity at 750°C. Both prestrained and unprestrained materials exhibit microcracking combined with dislocation substructures containing high densities of dislocations. Unprestrained MoSi2 exhibits a yield point in this temperature range which does not exist when it is prestrained. The stress-strain curves of the prestrained material in this temperature range are similar qualitatively to those of the unprestrained material at 1100°C and above. These observations suggest that at these temperatures MoSi2 is a dislocation density limited material which can deform by dislocation plasticity processes if a sufficient dislocation density is available.

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Prediction of Stress–Strain Curves Based on Hydric Non-Destructive Tests on Sandstones

Materials ◽

10.3390/ma12203366 ◽

2019 ◽

Vol 12 (20) ◽

pp. 3366 ◽

Cited By ~ 1

Author(s):

Marco Ludovico-Marques ◽

Carlos Chastre

Keyword(s):

Physical Properties ◽

Mechanical Behavior ◽

Water Absorption ◽

Analytical Model ◽

Strain Curve ◽

Low Pressure ◽

Design Parameters ◽

Compression Tests ◽

Stress Strain ◽

Non Destructive

The study of the mechanical behavior of building stones is traditionally supported by destructive compression tests carried out on representative specimens. However, in order to respect the monuments’ integrity, the study of the mechanical behavior of stones can be based mostly on physical properties obtained from non-destructive tests (NDT). For this study, a simple and cheap NDT—water absorption under low pressure—was used to carry out fast surveys and to predict the most important design parameters of loadbearing masonry, among which are the compressive strength, strain at failure, and even elastic modulus on monument blocks. The paper presents the results of the experimental work conducted to obtain the physical properties and stress–strain curves of the sandstones tested. Supported by these results, it was possible to correlate the various parameters and develop an analytical model that predicts the stress–strain curve of the sandstones based on water absorption under low pressure tests. A good agreement is observed between the analytical model and the experimental tests.

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Effects of applied pressure on microstructure and mechanical properties of squeeze cast ductile iron

Materials & Design (1980-2015) ◽

10.1016/j.matdes.2011.06.040 ◽

2011 ◽

Vol 32 (10) ◽

pp. 4747-4755 ◽

Cited By ~ 11

Author(s):

H. Khodaverdizadeh ◽

B. Niroumand

Keyword(s):

Mechanical Properties ◽

Ductile Iron ◽

Applied Pressure ◽

Squeeze Cast ◽

Microstructure And Mechanical Properties ◽

Cast Ductile Iron

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Investigation of thermochemical boriding effect on wear behavior of a GGG 50 quality as-cast ductile iron

Industrial Lubrication and Tribology ◽

10.1108/ilt-10-2015-0148 ◽

2016 ◽

Vol 68 (4) ◽

pp. 476-481 ◽

Cited By ~ 3

Author(s):

Harun Mindivan

Keyword(s):

Wear Resistance ◽

Abrasive Wear ◽

Ductile Iron ◽

Room Temperature ◽

Wear Behavior ◽

Surface Hardness ◽

Wear Test ◽

Content Type ◽

Pin On Disc ◽

Cast Ductile Iron

Purpose This study aims to investigate the microstructure and the abrasive wear features of the untreated and pack borided GGG 50 quality ductile iron under various working temperatures. Design/methodology/approach GGG 50 quality as-cast ductile iron samples were pack borided in Ekabor II powder at 900°C for 3 h, followed by furnace cooling. Structural characterization was made by optical microscopy. Mechanical characterization was made by hardness and pin-on-disc wear test. Pin-on-disc test was conducted on a 240-mesh Al2O3 abrasive paper at various temperatures in between 25 and 450°C. Findings Room temperature abrasive wear resistance of the borided ductile iron increased with an increase in its surface hardness. High-temperature abrasive wear resistances of the borided ductile iron linearly decreased with an increase in test temperature. However, the untreated ductile iron exhibited relatively high resistance to abrasion at a temperature of 150°C. Originality/value This study can be a practical reference and offers insight into the effects of boriding process on the increase of room temperature wear resistance. However, above 150°C, the untreated ductile iron exhibited similar abrasive wear performance as compared to the borided ductile iron.

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