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	<title>rock cutting &#8211; BIOENGINEER.ORG</title>
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		<title>Worn Drill Bits and Rock Type Team Up to Distort Torque in Surprising Ways</title>
		<link>https://bioengineer.org/worn-drill-bits-and-rock-type-team-up-to-distort-torque-in-surprising-ways/</link>
		
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		<pubDate>Tue, 06 Oct 2026 09:55:31 +0000</pubDate>
				<category><![CDATA[Technology]]></category>
		<category><![CDATA[bit wear]]></category>
		<category><![CDATA[contact topology]]></category>
		<category><![CDATA[drilling automation]]></category>
		<category><![CDATA[drilling digital twin]]></category>
		<category><![CDATA[drilling torque]]></category>
		<category><![CDATA[lithology]]></category>
		<category><![CDATA[moment arm]]></category>
		<category><![CDATA[nonadditive interaction]]></category>
		<category><![CDATA[PDC bit]]></category>
		<category><![CDATA[PFC3D simulation]]></category>
		<category><![CDATA[rock cutting]]></category>
		<category><![CDATA[torsional response]]></category>
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					<description><![CDATA[A landmark simulation and field study shows that PDC bit wear and rock lithology interact nonadditively to shape drilling torque, explaining why fixed thresholds misdiagnose bit failure and offering a mechanistic correction that cuts bias by more than three quarters.]]></description>
		
		
		
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