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Pursuing Sustainability, 2008 Engineering, Pulping and Environmental Conference

Pursuing Sustainability, 2008 Engineering, Pulping and Environmental Conference

The Sulfur Cycle and Regulatory Limits, 2008 Engineering, Pulping and Environmental Conference

The Sulfur Cycle and Regulatory Limits, 2008 Engineering, Pulping and Environmental Conference

Update on NCASI Sulfide Oxidation Research, 2008 Engineering, Pulping and Environmental Conference

Update on NCASI Sulfide Oxidation Research, 2008 Engineering, Pulping and Environmental Conference

Flexographic Image Reproduction Specification and Tolerence: First 4.0 Design Guide, 2009 Corrugated Conference

First 4.0 Design Guide, 2009 Corrugated Conference

Fundamental Studies Applied for Latest Development in Deinking Flotation Technology, 2009 TAPPI Engineering, Pulping, Environmental Conference

Fundamental Studies Applied for Latest Development in Deinking Flotation Technology, 2009 TAPPI Engineering, Pulping, Environmental Conference

Using Thermal spray vs. Weld Overlay in Batch Digesters, PaperCon 2010 Conference

Using Thermal spray vs. Weld Overlay in Batch Digesters, PaperCon 2010 Conference

On the design of corrugated boards: A new FEM modeling and experimental validation, TAPPI Journal August 2025

ABSTRACT: This study presents a simplified finite element modeling (FEM) approach suitable for large structures made of corrugated boards, such as customized packages, based on a homogenization method, which is combined with correction factors for internal mechanisms. The homogenization process reduces computational time by transforming flute geometries into equivalent elastic models. In large deformations and in the presence of contact for a given geometry, the effective elastic modulus in the thickness direction, as well as the effective thickness of the structure, are corrected by two statistical Weibull distributions representing the contact and buckling mechanisms in a corrugated board. The Weibull parameters are obtained via experimental analysis, and such a process is then validated. The results demonstrate that the statistical parameters (â1 = 0.14, â2 = 1.31) can be used for the simplistic representation of corrugated boards, being computationally efficient. This research contributes to the optimization of corrugated packaging design, specifically by simplifying FEM models for faster, yet equally accurate, simulations.

Filtration performance of face masks and facepiece respirators used during COVID-19 pandemic, TAPPI Journal February 2025

ABSTRACT: The rapid spread of SARS-CoV-2 has created challenges for societies, healthcare settings, businesses, and institutions. To curb virus transmission, various measures like lockdown, social distancing, hand hygiene, and using appropriate personal protective equipment (PPEs), including face masks, have been recommended. Face masks and facepiece respirators are considered to act as barriers against microbial transmission from person to person. In this study, we selected barrier materials used during the COVID-19 pandemic that included four non-medical face masks and three facepiece respirators. Facepiece respirators were distributed by the U.S. Administration through pharmacy outlets. Results showed that facepiece respirator R95 has the highest filtration efficiency (above 99%), which remains more or less the same over different particle sizes. The N95 respirator’s filtration efficiency was lower than that of R95, but its barrier resistance was lower than that of the R95, indicating that it can be comfortably used over longer duration. Face masks were evaluated using ASTM F 3502-24 for their barrier performance. At 0.1 and 0.3 ìm particle size, domestically manufactured masks met the standard for higher performance. Interestingly, the results indicate that quality of raw materials and manufacturing standards play important roles, as is evident in domestically manufactured face mask and facepiece respirators.

Standardizing the ERP Landscape for Paper and Board: Case Study at Beaver Paper, Paper360º July/August 2025

TAPPI News, Paper360º July/August 2025