Shailendra Singh Bhadauria

• PhD
• Professor (Assistant) at Dr. B. R. Ambedkar National Institute of Technology Jalandhar

The present study is focused on the nanoreinforcement of carbon fiber reinforced polymer laminates to evaluate its effect on delamination growth in double cantilever beam specimen. Multi‐walled carbon nanotubes were sprayed on the laminate interface using air‐brush spraying technique. Three nanofiller contents of 0.05 wt.%, 0.1 wt.%, and 0.5 wt.% w...

The variation in the forging action during single-side friction stir welding (SS-FSW) and double side friction stir welding (DS-FSW) joining of AA-6061 T6 alloy by friction stir welding (FSW) process was conducted. The microscopic study of the stir zone (SZ) of SS-FSW joint configurations showed that the forging action obtained with a 3° tool tilt...

In the present study, the effect of tool tilt angle was investigated to appraise the metallurgical and mechanical behavior of double-sided friction stir welded joints of AA-6061 T6 alloy of 6 mm thick plates, using scrolled shoulder and frustum tool pin geometry. Two friction stir welded joints, with 0° (Joint J 1 ) and 2° (Joint J 2 ) tool tilt an...

Corrosion pit to crack transition behaviors of forged 304 Stainless steel were investigated in ferric chloride solution. The combined effect of corrosion and stresses were considered. The residual stresses were revealed by XRD analysis. As an outcome, the FESEM and EDX were used to analyze the surface morphology. The high-speed camera was used to d...

The present study proposes a protective TiO2 coating against chloride driven stress corrosion cracking problem of 316L austenitic stainless steel. To test the performance of the proposed coating, the severe chloride‐based boiling magnesium chloride solution at 155 °C was chosen. For experimentation, the constant strain‐based U‐bend specimens were c...

The localized material degradation and weakening induced by stress corrosion cracking (SCC) cause major effect on the service life of various machine components. The 300 series austenitic stainless steels are prone to SCC in chloride environment. Due to the complexity of SCC problem and its persistent attack, it is essential to study the problem wi...

This study aims to examine the electrochemical corrosion behavior of a type (Forged) F304 stainless steel (SS) in the FeCl3 solution at 5 °C, 22 °C to 50 °C for the period of 24 h. The corrosion behavior was studied by using ASTM G48 which includes, weight loss and corrosion rate. The corrosion products were characterized with the help of EDX analy...

Forged (F) 304 stainless steel is well known for its material properties of corrosion resistance and can withstand in extreme environments. Hence, this study was dedicated to investigating the Stress corrosion cracking (SCC) behavior of F304 austenite stainless steel (SS) using ASTM G36. The specimen was immersed in a boiling magnesium chloride sol...

In recent years, selective laser melting (SLM), a part of additive manufacturing (AM) is one of the most encouraging ones that permit fabricating metallic parts from metal powder with complex geometry. Diversities in these cycle boundaries become an imperative system to improve the nature of the outcome. Cycle boundaries, for example, laser power,...

The localized loss of material due to corrosion activities leads to the formation of pits. It produces undesired effect of stress riser which harms the structural integrity. To safeguards the structure with pre-existing pits, finite element analysis (FEA) can be very helpful. The present study investigates the influence of pit shape on crack initia...

The bend-beam specimen serves as a constant strain test for stress corrosion cracking related studies. State of stress-strain in the specimen changes dramatically after the occurrence of cracks. To understand the severity of occurred cracks at various locations in the specimen, it is highly recommended to use finite element method-based techniques....

The present study reports the finite element analysis of edge and cleavage cracks in the sub-model of U-bend specimen under pure bending loading. Both the edge and cleavage cracks were modeled using contour integral approach. Twenty different cases of edge cracks were analyzed using ABAQUS CAE software to understand their influence in mode-I stress...

The corrosion and electrochemical behavior of high-strength steel AISI 4340 with or without nitrocarburizing heat-treated conditions was studied using salt spray test under 5% NaCl for 24 hours. Electrochemical experiments were also carried out under corrosive environment of a 1N H2SO4. Without heat-treated results obtained by electrochemical test...

In this study, the key parameters of cohesive zone modeling, which significantly affect the accuracy in delamination problems, are examined. The study is performed on various standard fracture toughness specimens subjected to mode I, mode II and mixed mode loading. The compressive buckling of a composite laminate is then modeled and the results are...

This review critically examines the recent developments in the use of carbon-based nanofillers as additional reinforcement to enhance the interlaminar properties of FRP composites. The low interlaminar strength of FRP composites results in delamination failure. The various nanoreinforcement strategies and their effect on fracture toughness, interla...

Present paper deals with an experimental investigation of pitting corrosion of forged 304 stainless steel. Material is exposed to ferric chloride solution to investigate the effect of pitting corrosion. This material is known to provide structural strength with improved toughness and ductility. A number of experiments were carried out on F304 SS un...

The new model of stress triaxiality, subjected to plane strain condition under mixed‐mode (I + II) loading, at the yield loci of the crack tip, has been formulated using unified strength theory. It evaluates critical values of triaxiality for various convex and non‐convex failure criteria, unlike the existing model. It shows the effects of Poisson'...

In this analytical study, anisotropic triaxiality, at the yield loci of the crack tip under mixed-mode (I + II) loading, has been modeled. According to the well-known M-criterion the crack of any orientation from the loading axis, initiates at a polar angle at which criticality of triaxiality occurs. Thus, the critical values of triaxiality have be...

Metallic components used in industries and day to day appliances often contain micro-cracks. In general, cracks occur in various orientations to the loading axis. The present paper discusses the criticality of stress triaxiality, a well-known ductile fracture parameter, on the yield loci at the crack tip. In the process, an old model of stress tria...

On the ground of manufacturing, sheet metal parts play a key role as they cover about half of the production processes. Sheet metals are commonly obtained from rolling and forming processes which causes misalignment of micro structure resulting obvious anisotropic characteristics and micro cracks. Presence of micro cracks poses serious attention, w...

Structural parts used in boilers, turbines, ships and many household purposes are manufactured through sheet metal forming processes. During manufacturing, the micro structure of the material is deformed and micro cracks along with anisotropic properties get induced. Present research deals with a thin sheet metal plate containing a central crack su...

The triaxiality of the stress state is known to greatly influence the amount of plastic strain, which a material may undergo before ductile failure occurs. It is defined as the ratio of hydrostatic pressure to the von Mises equivalent stress. In this work mathematical model for crack tip opening displacement based M-Criterion is developed. This mod...

The triaxiality of the stress state is known to greatly influence the amount of plastic strain, which a material may undergo before ductile failure occurs. It is defined as the ratio of hydrostatic pressure to the von Mises equivalent stress. In this work mathematical model for crack tip opening displacement based M-Criterion is developed. This mod...

It is widely accepted that failure due to plastic deformation in metals greatly depends on the stress triaxiality factor (TF). This article investigates the variation of stress triaxiality along the yield locus of ductile materials. Von Mises yield criteria and triaxiality factor have been used to determine the critical limits of stress triaxiality...

Present study deals with the prediction of crack initiation angle for mixed mode (I/II) fracture using finite element techniques and J-Integral based approach. The FE code ANSYS is used to estimate the stress intensity factor numerically. The estimated values of SIF were incorporated into six different crack initiation angle criteria to predict the...

The triaxiality of the stress state is known to greatly influence the amount of plastic strain which a material may undergo before ductile failure occurs. It is defined as the ratio of hydrostatic pressure, or mean stress, to the von Mises equivalent stress. This paper discusses the effects of stress triaxiality on yielding behavior of anisotropic...