Plugin Before not working

I am trying to understand functionality of plugin method. for that i have created a custom module and i added below code in di.xml


    
        
    

and model class code is

namespace AdhikariStudyPluginModel;
class StudyPlugin extends MagentoFrameworkModelAbstractModel
{
    public function getName($name){
            return $name;
    }
}

after that my plugin method code is

namespace AdhikariStudyPluginPluginModel;
class StudyPlugin
{

    public function beforeGetName(AdhikariStudyPluginModelStudyPlugin $subject, $name){
        die('hello');
        return ['(' . 'My name is '.$name . ')'];
    }

}

and at last i have created a block class and below is the code of that block class.

namespace AdhikariStudyPluginBlockStudyPlugin;
use MagentoFrameworkViewElementTemplate;
class PluginBlock extends Template 
{

    public function __construct(
        TemplateContext $context,
        AdhikariStudyPluginModelStudyPlugin $studyPlugin,
        array $data = []
    ) {
        parent::__construct($context, $data);
        $this->_studyPlugin = $studyPlugin;

    }

    public function getName($name){
        return $this->_studyPlugin->getName($name);
    }
}

but when i include that block in homepage and call block function getName(‘hello’); it doesn’t code in before plugin method. but i calls model class method getName($name) and return value.

can someone please help me to understand the workflow of this or if i am doing some mistake..